Most of the time when an app is updated, it's pretty clear what the update brings. New features? Enhancements and tweaks? Bug fixes? Whatever the case may be - it's right there in the changelog. However, there are those circumstances when that's just not the case. The recent update to HBO GO and MAX GO are a perfect example of this - especially the latter.

Update: Looks like the MAX GO devs pulled the ol' switch-a-roo on us: they updated the changelog and removed the "support for 10-inch HD Tablets" entry.